Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 780 for “"ARCH"”.
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Stone arch bridge
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1873.
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Comparison of Two methods of Transpalatal Arch and Lingual Arch Activation
<p>The TPA and LA can be activated with two methods: the “shape-driven method” where the appliance is made to match the final tooth position and the “force-driven method” where the appliance is made to make sure the force system delivered by it at the beginning is consistent with the planned tooth …
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Impact of Childhood Obesity on Dental Crowding, Arch Shape, and Arch Width
… the effects of obesity on dental crowding, arch shape, and arch width in children from age 5-17.9 with various body mass indices (BMI). Patients presenting at the University of Illinois at Chicago for their orthodontic records appointment were recruited. Patients were categorized according …
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A comparison of a two-hinged arch with a three hinged arch
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1936.
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Arch bridges: Design - Construction - Perception
The arch bridges have an historical development, that is rooted in their ancient tradition, yet are also very successful to this day, a rediscovery of the earliest arched forms can be seen in the most recent innovations. After millennia of masonry arch bridges and almost two centuries of relentless …
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Stress Analysis of Arch Dams
Made available in DSpace on 2014-12-04T23:10:46Z (GMT). No. of bitstreams: 1 0002715.pdf: 4836487 bytes, checksum: 27042c68fc1774be8f27a1449d082595 (MD5) Previous issue date: 1951
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Shape optimization of arch dams.
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1968.
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Analysis of Pressurized Arch-Shells
A pressurized arch-shell structural component made of flexible material is considered. The component is inflated with high internal pressure. The behavior of similar types of structures, such as a pair of leaning pressurized arches and pressurized arch-supported membrane shelters, has been …
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Multi-Objective optimization of arch bridges
Trussed arch bridges are commonly used to attain big spans. They are efficient structures that offer a wide range of geometries, materials, and topologies. This thesis studies the influence of the geometry and topology of arch bridges on both their structural performance relayed by the maximum …
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Behavior of a coupled arch system
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.
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Evolution of the Kingman Arch, southern Nevada
The Kingman Arch is a structurally high area in southern Nevada and northwestern Arizona that lies partially within the Colorado River Extensional Corridor. Apatite fission track and 40Ar/39Ar thermochronological analyses were conducted for granite samples collected from a 4.5 kilometer thick …
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Semplified seismic Vulnerability Assessment of Masonry Arch Bridges
… seismic vulnerability assessment of masonry arch bridges with common typologies in Europe. Bridges are, in most cases, the most vulnerable elements in the transportation network during an earthquake; therefore, their seismic vulnerability assessment is necessary for a proper planning of the …
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Behaviour and analysis of a flexible concrete arch
… early 20,h century led to a decline in masonry arch bridge building. Traditional masonry arch construction is time consuming and involves considerable formwork usually in the form of timber centring, as well as traditional skills. It is also limited by the spans at which the design is efficient. …
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Static and dynamic characterization of tied arch bridges
<p>"Tied arch bridges have been designed and constructed since the late 19th century. With their open vista owing to minimalist features tied arch bridges continue to appeal the public. Tied arch bridges are both aesthetic and economical alternates to long span bridges holding a place in the …
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Automated Image-Based Inspection of Masonry Arch Bridges
Masonry arch bridges have proven to be durable and underpin much of the world’s transport infrastructure. However, they are an aging asset, and their effective management is challenging. Existing management focuses heavily on manual inspection, which has been shown as subjective and often leads to …
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In-plane vibrations of a transversely isotropic arch
… the dynamic response of a laminated composite arch is developed from classical shell theory. The problem is reduced from a shell to an arch by making an assumption that the variation of the field of variables in the direction of the width of the arch is small compared to those in other …
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In Vitro Comparative Study Between Full-Arch Conventional Implant Impressions and Full-Arch Digital Implant Impressions with Snap-on Scan Bodies
… was to measure and compare the accuracy of full- arch conventional implant impressions with open and closed-trays, full-arch digital implant impressions with intraoral scanners (IOS), and three-dimensional (3D) printed casts from the full-arch digital implant impressions. Material and methods: Six …
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